XLIM and the Labex Sigma-LIM generate a large modeling activity (from fabrication up to circuits) which is based on advanced characterisation (PLATINOM). Optimisation algorithms and tools for mathematical analysis are also developed alongside. The generalist programmable environment called SCERNE ("Simulation de Chaînes d'Emission/Réception Nouvelle gEnération" in french, which may be translated as "New Generation Simulation of EMISSION/RECEPTION Chains") integrates these elements and thus facilitates the development and the validation of new models which will be added to SCERNE's palette. This enables the models to be integrated into generalist, multi-domain and heterogeneous system simulators.